Commencer votre première session JolyMusic

Source: Documentation/GettingStarted.md

Purpose

JolyMusic is organized around reusable musical context rather than isolated pages. A productive first session establishes four things:

1. an authenticated and verified user identity;
2. a supported interface locale;
3. one or more favorite instruments;
4. an audio route that can actually render the chosen material.

The dashboard is an authenticated entry point, not a public landing page. The profile stores durable user preferences. Musical tools may also maintain temporary browser state, so saving a profile preference and saving a tool document are separate operations.

Audio Settings Contract

Both route aliases reach the same controller:

GET|PATCH /{_locale}/profile/jolyengine-settings
route: app_profile_jolyengine_settings

GET|PATCH /{_locale}/profile/audio-settings
route: app_profile_audio_settings

Authentication is required for both methods. GET returns:

{
  "settings": {}
}

PATCH additionally requires SubscriptionAccessVoter::WRITE. The request may be either the settings object itself or:

{
  "settings": {
    "playbackEngine": "tone"
  }
}

Unknown keys are discarded. Accepted top-level families include:

• device selection: inputDeviceId, outputDeviceId;
• main routing: playbackEngine, soundPresetId;
• drum, general instrument, mono, polyphonic, and microtonal defaults;
• Tone.js instrument, volume, and pan;
• oscillator waveform, volume, and pan;
• MIDI input/output, channel, volume, and pan;
• sampler backend, source kind, source URL, volume, and pan.

Engine Normalization

The general playbackEngine accepts:

tone
midi
sampler
frequency

An unsupported general engine falls back to tone.

Family defaults are stricter:

• drum, general instrument, and mono: tone, sampler, or midi;
• polyphonic and microtonal: tone or midi.

Unsupported family defaults become null, allowing the consumer to fall back to a broader setting.

Numeric Clamping

The controller clamps rather than rejects these values:

| Setting | Range | | :--- | :--- | | Tone/frequency/sampler volume | -60 to +12 dB | | Tone/frequency/sampler pan | -1 to +1 | | MIDI channel | 1 to 16 | | MIDI volume | 0 to 127 | | MIDI pan | 0 to 127 |

Preset IDs are converted to positive integers or null. frequencyWaveform accepts sine, triangle, square, and sawtooth, falling back to sine. samplerBackend normalizes to standalone or lazy; samplerSourceKind is forced to sfz.

Legacy tonePresetId, samplerPresetId, or presetId can supply soundPresetId when the modern key is absent.

Recommended First Session

Use one stable musical object through the whole session:

1. select a locale and favorite instrument;
2. open one KeyScale;
3. listen through the configured engine;
4. sing or identify its degrees;
5. map it onto the chosen instrument;
6. create or open one short Performance, Harmony, rhythm, or ear-training round;
7. save only after verifying playback and visibility.

This sequence avoids changing the theoretical collection, instrument layout, and sound engine at the same time. When something sounds wrong, only one layer needs to be inspected.

Troubleshooting

Dashboard returns 403

The user may be authenticated but not verified. Account verification is checked after authentication.

Profile action redirects to login

The session is not authenticated. Profile reads do not silently create an account or token.

A preference cannot be saved

Write actions are subscription-gated. Confirm SubscriptionAccessVoter::WRITE, then validate CSRF where the route is form-based.

A favorite instrument disappears

The stored ID may no longer be selectable for the user because publication, ownership, or team visibility changed.

Playback is silent

Check, in order:

1. browser audio permission and physical output volume;
2. outputDeviceId;
3. playbackEngine;
4. required preset or sampler source;
5. the tool's assigned JolyEngine receiver;
6. whether the current musical object contains playable events.

A malformed PATCH changes unexpected settings

It should not: unknown keys are dropped. If a known key behaves unexpectedly, inspect its normalization branch in ProfileAudioSettingsController::sanitizeAudioSettings().